Hypothesis Development

Hypothesis Development

If…, then … statements

Fill in the Blanks

List the three branches of science from lesson 1.

Multiple Choice

Information incorrectly represented as scientific.

• fake news

• critical thinking

• scientific inquiry

• pseudoscientific

Multiple Choice

A spoken or written summary of observations.

• explanation

• description

• science

• hypotheiss

Multiple Choice

The SI system is based in multiples of ___.

• 11

• 2

• 10

• 20

Steps of the Scientific Method

●Observation/Question

●Hypothesize/Predict

●Test Hypothesis/Experiment

●Analyze Results

●Draw Conclusions

●Communicate Results

Hypothesis

●From the _question_ develop an If, then statement based on your _observation_.

●Formula for a hypothesis:

○If = _independent_ variable, then = _dependent_ variable.

●A hypothesis can be _tested_.

●Avoid using you, I, or we.

●Example:

○If Ms Creek waters the plant every day, then the plant will grow 4 cm.

○Independent = waters the plant every day

○Dependent = plant will grow 4 cm

Multiple Choice

Identify the Independent variable (IV):

If leaf color change is related to temperature, then exposing plants to low temperatures will result in changes in leaf color.

• leaf color related to temperature

• exposing plants to varying temperatures

• temperature change causing leaf color to change

• no I.V. stated

Multiple Choice

Identify the Dependent variable (DV):

If leaf color change is related to temperature, then exposing plants to low temperatures will result in changes in leaf color.

• leaf color related to temperature

• exposing plants to low temperatures to change leaf color

• temperature change causing leaf color to change

• no I.V. stated

Example 1

●Question:

○Does fertilizer make a plant grow bigger?

●Possible Hypothesis:

○If fertilizer is added to the soil the plant is growing in, then it will grow taller.

●Independent variable:

○Fertilizer is added to the soil

●Dependent variable:

○It will grow taller

Example 2

●Question:

○Does an electric motor turn faster when you increase the current?

●Possible Hypothesis:

○If the current is increased, then the electric motor will turn faster.

●Independent variable:

○The current is increased

●Dependent variable:

○Electric motor will turn faster

Multiple Choice

Identify the Independent variable (IV):

Bacterial growth may be affected by temperature.

• bacterial growth

• temperature

• not enough information

• light

Multiple Choice

Identify the Dependent variable (DV):

Bacterial growth may be affected by temperature.

• bacterial growth

• temperature

• not enough information

• light

Multiple Choice

A description of how close a measurement is to an accepted value.

• precision

• description

• explanation

• accuracy

Multiple Choice

Used to hold or measure the volume of liquids.

• glassware

• balance

• thermometer

• spring scale

Multiple Choice

Prefix for 1,000,000 or

• milli-

• centi-

• kilo-

• mega-

Multiple Choice

Prefix for 100.

• kilo-

• hecto-

• deci-

• micro-

Multiple Choice

Prefix for 0.01.

• kilo-

• centi-

• deci-

• micro-

Multiple Choice

Prefix for 0.000001.

• kilo-

• centi-

• deci-

• micro-

Multiple Choice

Length =

• meters (m)

• candela (cd)

• kilogram (kg)

• Kelvin (K)

Multiple Choice

Mass =

• meters (m)

• candela (cd)

• kilogram (kg)

• Kelvin (K)

Multiple Choice

Temperature =

• meters (m)

• candela (cd)

• kilogram (kg)

• Kelvin (K)

Multiple Choice

Time =

• meters (m)

• candela (cd)

• kilogram (kg)

• second (s)

Multiple Choice

SI is short for ____.

• metric system

• international system of units

• system of investigation

• Do not select this option!

Multiple Choice

Factors in an experiment that do not change.

• constants

• DV

• IV

• Hypothesis